Shellshock CVE-2014-6271 Mitigation - Custom ASM signature

Using custom signatures, ASM may be used to mitigate Shellshock as follows:

Signature Rule:

headercontent:"() {";

Applying to ASM Policies

After saving this signature, ensure that the signature is applied to your ASM policies by checking each policy and filtering by User Defined. Ensure that the signature is taken out of staging as soon as blocking is required.